Smoke-consuming apparatus.



No. 889,806. PATENTED JUNE 2, 1908.

v P. M. REED.

SMOKE GONSUMING-APPARATUS.

APPLICATION FILED JUNE 24, 1907.

2 SHEBTS-SHEET 2.

WINESSES: 1 INVENTOR U ETE STA@ FRANKLIN M. REED, OF INDIANAPO'IJS,

ns Pasar FREE.

INDIANA, ASSIGNOR OF ONE-THIRD 'lO GEORGE K.

SMOKE-CONSUMING APPARATUS.

Specification of Letters latent.

Patented June 2, 1908.

Application mea June 24., 1907. serial No. 380,559.

To all 'whom it may concern:

Be it known that l, FRANKLIN M. REED, citizen of the United States, residing at lndianapolis, in the county of lvlarion and (State of indiana, have invented certain new and useful improvements in Smoke-Consuming Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings.

M v invention relates to new and useful improvements in an apparatus for reducing the generation or formation of smoke in furnaces to a minimum and for consuniing that smoke or nnconsumed gases that is or may be generated in a furnace.

Various devices where-by airunder pressure, steam, or other lluid blasts have been applied and used in connection with boilers and other furnaces of various constructions with a' View of creating a perfect and tierce combustion of the fuel in the furnace to either prevent a formation of the smoke or a consumption of the latter after being formed. None of theI appliances heretofore. in use have satisfactorily perfornuul the function' required of them to that degreeI as to render them useful and practical and a valuable. adjunct to a lfurnace. of a steam boiler or other furnace in which soft or bituminous coal is used as a fuel.

'lhe object of this invention is to provide an apparatus, that, by the cooperation of the parts thereof, a zone of intense. heat is created and maintained at a certain lixed portion of the furnace and .vhcrcby the unconsumed gases are directed toward and into said zone and retarded in their onward course at' this point to beconsunual', also, to provide means cooperating with the above means whereby a whirling motion or edd)y of the retarded gases is create-d at said zone of intense heat whereby the partially consumed gases are thoroughlv mixed with the oxygen of the air to support their combustion to contribute to the maintenance of the high temperiiture at this portion of the lire or zone of heat. l attain these objects b v means of the apparatus illustrated in the acconunniving drawiugsin which like numorals y of reference designate like parts tlu'oughout the several views.

Figure l is a. longitudinal sectional clcva.

tional view of a boiler furnace taken along the line t-Yvfl iu Figs. 2 and Il; Fig. is a transverse. sectional elevational view of the VFig. it) is a detail end sectional view' of the use the same.

saine taken' along the. line 2---2 1n Fig. i; F ig. 2% is a similar sectional view taken along the line 3---3 in Fig. l Fig. 4 is an enlarged detail sectional view the air-eollecting chamber of the twyer taken along the line 4wdin Fig. 5;Y Fig. 5 is a transverse detail sectional view of the saine taken along the line 5--75 in Fig. 4;, Fig. (i is an enlarged detail view of the twyer pipe; Fig. 7 is a transverse scctional view of the same taken along the line 7 7 in Fig. 6; Fig. 8 is an enlarged detail sectional view of the air-collecting chamber of the forward jet-pipe; Fig'. t) is an. enlarged detail view of the forward `iet-pipe; and,

same taken along the line WW, in Fig. 9.

The following is a description of my invention in such full, clear, concise and exact terms as to enable others skilled in the art to which it appertains to construct, operate and Figs. t, 2, and 3 are illustrations of a boiler furnace in which 1 designates a broken portion of a boiler, 2 the front wall ofthe boiler setting, 3 the rear wall, 4 and 5 the side walls, 6 the. bridge-wall ol' the furnace and 7 the gratos thereof. The grates 7 are supported at their forward ends by the crossbeam S'formed integral on the dead plates t), and the rear ends of said gratos are supported by the cross-beam l0 and both of which beams are built into said side walls which support them. The twyer protecting grate il is formed integral on the grate supporting bea-1u l() and curves upwardly above the .90 level of the grates 7 and backwardbY to the bridge-wall t3 terminating iu the cross-bar 1; with which it is formed integral. The crossbar 12 is built into the bridge-wall (i of the furnace to protect it from the intense. heat of the furnace at this portion of the lire to prevent it warping or twisting by an unequal or irregular heating to maintain the bars ofthe grate 11 in their relative positions.v

That portion of the bridge-wall t situated above the approximate level of the lire is arched or curved, and said arched surface is so disposed that its concave surface 13 is directed toward the [ire of the furnace so that the gases generated from thelire in the furnace in their passage over said [ire will be intercepted b v it and a circular or whirling motion or eddy at the zone of intense heat of the furnace will `be imparted to them to thoroughbv mix said gases with the oxygen of the air admitted ino the furnace through the furnace-doors and the jet and twyer pipes, hereinafter descrif'ied, to retard their movement at this point in order to the more c mpletely .consume the unconsumed prod- 't :nts of combustion and to prevent the formation of smoke.

A baille 1.4 extends directly across and pro- 'ects from the concave surface 13 ot the ridge-wall (i which is provided to interceptv Iwith a series of blast or jet opei'iings 16 arranged at suitable'intervals apart along said twyer or blast-pipe and so situated relative to the fire over the grate 1f to impinge directly up and against it so es to maintain an intense combustion at this portion of the furnace.

The twyer pipe 15 projects through-the side wall 4 and on this projecting end situated exteriorly of seid side wall is mounted an air-collecting-chamber 17 whereby the air is collected to be forced into the said twyer-pipe 15 to supply thenecessary volun'ie of air to the jet openings lo thereof to form air-jets or blasts of the required pressure. A steam pipe 18 is connected to the steam nozzle 1S) of the air collecting chamber 17 :md said. pipe is provided with a suitable valve 20 whereby the supply of steam to said nozzle is controlled. Air-inlet openings 21 are provided for the supply of air to said collecting chamber 17 and a registering valve 22, provided witlrvalve openings 23, surrounds and lits over the surface of said chamber to be turned thereon so as to control the admission of the air into said air-collecting chamber 17. l`he construction and operation of thesaid air collecting chamber being for the most part, similar to other air-collecting and n'iixing chambers which are of common use and well known a further detailed description of the same is unnecessary.

The next important element in this invention is the forward -iet-pipe 24 whereby the products of incomplete combustion of the fuel situated at the forward portion of the fire or that portion of the lire situated toward or near, the fire-doors of the furnace and said jet-pipe is arranged to cooperate with the tvvyer-pipe 17, previously described, to corn- .pletely eonsumethe uneonsumed smoke and gases generated in the furnace. 1

The forward jet-pipe 2,4 is situated in the interior front portion ofthe furnace to extend over the lire-door openings thereof or a suitable distance over the top of the front portion of the rire and said jet-pipe is provided with a series oi' jet.opeiiings 25 which are arranged et suitable intervals apart along said pipe and are proportioned in number and size to provide a sufficient volume of fluid to force the products of incomplete combustion of the fuel downwardly upon the surface of the fire and direct them toward tho heat Zone of the furnace.

The forward jet-pipe 'Z4 [nojects through and beyond the outer side of the side well 4 und on the projecting end is secured an air collectingl clnunber' 2o which is flared outwardly towards its air-inlet end to provide air-inlet passages ol" suitablc area around the nozzle '27, formed integral with said chamber, for the admission of the requisite amount of air to supply said jet-pipe't. A steam supply pipe ZS is connected to the boiler 1 or othbr suitable source of supply and to the nozzle 27 and said steam pipe 28 is provided with e valve 29 whereby the supply of the steam to said nozzle is controlled.

The operation of this invention is as follows :'l`he lire having been started in the furnace, the air blast of the twyerpipe 15y is first put into operation by turning the valve 20 to supply steam under pressure to the nozzle 19 to create on intense combustion of thefuel in. the vicinity of and above the twyer--pipc 15. I next put the airblasts from the pipe 23 in operation by means of the valve 29. These air-jets, as previously explained, are directed toward the bri 'lge-wall and that portion of the lire situated over the protecting grato 11 of the t\\' ve1'pipc 15 carry and direct they unconsumed products of combustion toward and into the heat zone to be consumed. 'l`he concave side 13 of the bii 1lge\vall 6 being situated toward the lire and a deflector 14 being situated in the surface of said concavity, es shown and previously described, operate to produce a whirling downwardly motion to thc unconsumed products of con1- bustion and the gases generated in the furnace to direct them to end into the heat zone of the fire to be completely consumed thereby preventing a formation of smoke.

1. ln a smoke consuming apparatus, the combination with al furnace, a bridge wall having a concaved front side, said concaved side being directed toward and over the rear portion of the fire of the furnace, and a blast pipe situated in the front of the concaved side of said bridge wall and having a series of blast openings arranged at intervals apart along said pipe, said pipe situated on a level with the top of said grate of the furnace and cooperating with said bridge wall, of a steam jet-pipe :.:oiiperating with said bridge Wall and said blast pipe to concentrate the combination with a furnace,.a blast pipe blast pipe to protect the situated at the rear of said furnace on a level with the grate thereof having a seriesv of bla'st openings distributed at intervals apart,

and a rear arched grate projecting over said atter from the fire, of 'a steam jet pipe having jet openings arlranged at intervals a art,I said jet pipeco- 'operating with said b ast pipe and situated at the front interior portion of said furnace above the level of the ire'thereof.

3. In a smoke consuming apparatus, the

combination With 'a furnace, 'a .bridge-Wall vhaving its top side portion concaved, said concaved side portion being directedjtoward and over the rear portion ofthe fire, a baH'lel extending across and projecting from the face of said concaved surface' and situated above the level of the rear portion ofthe ire of the'furnace," and a twyer situated infront of said concaved surface of said bridge-Wall and on a level with the top of the grate ofthe furnace, of a steam jet-pipe coperatlng Wlth er and said concaved bridge Wall said t situate at the front interior portion of 'said p furnace above the level of the fire thereof.`

. Inftestimony WheleOf' Ialllx my Signum-.e I i in presence of two Witnesses. A

FRANKLIN M. REED. Witnesses: v

THOMPSON R. BELL, ROBERT H. Conan-AIR. 

